Arbor for spools or the like



July 8, 1941.

G. B. MARKLE, JR

ARBOR FOR SPOOLS OR THE LIKE Filed April 20, 1940 2 Sheets-Sheet 1 y 1941- G. B. MARKLE, JR 2,248,716

ARBOR FOR SPOOLS OR THE LIKE Filed April 20, 1940 2 Sheets-Sheet 2 63B Mam ,7

Patented July 8, 1941 OFFICE ARBOR FOR SPOOLS OR THE LIKE George B. Markle, Jr., Hazleton, Pa. Application April 20, 1940, Serial No. 330,792

8 Claims.

This invention relates to certain new and useful improvements in arbors for supporting shells forming headless spools or the like, the object being to provide an arbor having a plurality of bowed resilient wires for frictionally engaging the inner surface of the shell for retaining the shell in position thereon so that the shell will revolve with the arbor.

Another object of my invention is to provide an arbor which is exceedingly light in weight and cheap in construction and one in which the shell can be easily positioned on the arbor or removed therefrom when in the form of either a tube or a cone.

Another object of my invention is to provide an arbor having a central tubular core on which are welded stamped heads provided with flanges to receive and hold the ends and the bowed wires in such a position that an inclined surface is presented to the ends of the shell in placing the shell in position on the arbor and in removing it therefrom.

Other and novel features of the invention will be hereinafter set forth in the appended claims.

In the drawings,

Figure 1 is a longitudinal section through an arbor constructed in accordance with my invention;

Figure 2 is a perspective view of the same;

Figure 3 is a perspective view showing a shell partly in position on the arbor; V

Figure 4 is a horizontal sectional view of a slightly modified form of arbor;

Figure 5 is still another modified form of arbor;

Figure 6 is a perspective view of one of the wires used in the constructions shown in Figures 1 to 5;

Figure 7 is a detail section of still another modified form;

Figure 8 is a detail section of still another modified form; and

Figure 9 is a perspective view of one of the wires used in the construction of arbor disclosed in Figure 8.

In carrying out my invention I employ a central tubular metal core I on which is welded adjacent each end a stamped metal circular head 2 having an annular inwardly projecting flange 3 provided with contracted portions forming depressionsd arranged within the periphery of the flanges apertured to receive the angled end portions 5 of bowed wires 6 over which are adapted to be placed a tubular shell 1 as shown in Figure 3.

These depressions form seats for ends of the wires to present an inclined surface to the shell in placing and removing the shell. The wires will frictionally engage the inner surface of the shell and hold the shell firmly in position on the arbor thus formed.

By forming the depressions in the flanges, the shell can be readily slipped thereon or removed therefrom as thebowed wires are so positioned that when the shell is slipped thereon it engages an inclined surface to allow the bowed wires to flatten out as there is a slight sliding movement of the ends of the wires in the openings in the depressions.

One extreme end portion of each wire 6 is bent to the left and the other end of the wire is bent to the right as shown in Figure 6 so as to engage the inner walls of the flange 3 of the heads 2 in order to hold the bowed Wires upright and to relieve-the strain on the walls of the openings in the flanges of the heads.

While I have shown the heads spaced from the ends of the central core I, it is clearly understood that the heads can be placed so that the ends of the central core will be flush with the outer face of the heads so that when they are welded thereon a core will be formed without the extension bearing portions. The heads are welded on the inner surf'acesto the tubular core as clearly shown.

In the modification shown in Figure 4 a construction substantially the same as disclosed in Figures 1 to 3 is illustrated composed of a central core 8, heads 9,' the flanges ID of which are provided with apertured depressions l0 through which extend the angled ends of bowed wires II. In the construction disclosed in Figure 4 the heads are welded on the tubular core flush with the ends of the core; and are connected together by the bowed wires I I, the ends of which are'bent at right angles as disclosed in Figure 6 so as to prevent the wires from turning in order to hold the bowed portions of the wires upright whereby the shell can be slipped easily thereon or removed therefrom and will be frictionally held in position by the bowed wires.

In the modification shown in Figure 5 the central tubular'core I3 of the arbor is provided with heads l4 and I5 of different diameters constructed in substantially thesame manner as dising with a flange l9 welded on the core IT. The head is provided with an inwardly extending flange 20 which is contracted to decrease the diameter of the same and is provided with openings to receive the angled ends of bowed wires 2|, the ends of which are constructed substantially the same as disclosured in Figures 1 to 6.

In the modification shown in Figure 8, the tubular core 22 has heads 23 secured adjacent each end which are secured thereon and constructed in substantially the same manner as disclosed in Figure '7 with the exception that the inwardly projecting flange 24 instead of being depressed is turned towards the tubular core 22 to provide spaced walls having openings to receive the ends of bowed wires 25, the ends of which are constructed as shown in Figure 9 to hold the bowed wires upright as the angle end of the wire engage the inner wall of the flange.

In all of the constructions disclosed, the bowed wires are seated in the flanges of the head in such a manner as to allow the shell to be inserted and withdrawn without any danger of injuring the same and yet be securely held in position thereon.

The main object of my invention is to provide an arbor to receive a shell which can be frictionally held thereon and which is exceedingly light and cheap in construction, the bowed wires being so positioned within the heads of the arbor that the placing of a shell thereon or removal of the shell therefrom is not retarded in any way as the ends of the wires are so positioned that an inclined surface is presented to the end of the shell at each end in inserting and removing the shell therefrom.

While certain details of construction are disclosed for fastening the ends of the wires so that there will be a slight sliding movement to allow the bowed wires to flatten out slightly, I do not wish to limit myself to any of the details of construction as I am aware that various changes can be made without departing from the spirit of my invention.

I also wish it to be clearly understood that the arbor can be formed with or without extensions at its ends and that the various constructions of heads and bowed wire disclosed can be substituted for one another without departing from the spirit of my invention.

From the foregoing description it will be seen that I have provided an arbor for supporting a headless spool or the like constructed to support the same in such a manner that it is held in position on the arbor and rotated therewith by the frictional engagement of bowed wires and that these wires are so mounted in the heads of the arbor so that they can flatten out as the shell is positioned thereon. By constructing the ends of the wires as disclosed they can be easily inserted in the heads or removed therefrom and when in place in the heads will be held in their proper positions.

What I claim is:

1. An arbor for headless spools and the like comprising a central tubular core, spaced circular heads secured on said core having an annular flange provided with spaced apertures, bowed wires having their ends extending through said apertures, the ends of said wires being bent at an angle to secure said wires in upright position in said heads to present inclined surfaces for a spool when placed thereon.

2. An arbor for headless spools and the like comprising a central tubular core, spaced circular heads secured on said core having an annular flange provided with apertured depressions, bowed wires having their ends extending through said apertures, the ends of said wires being bent at an angle to secure said wires in upright position in said heads to present inclined surfaces for a spool when placed thereon.

3. In an arbor of the kind described, the combination of a tubular metal core, apertured flanged metal heads secured on said core, bowed wires connecting said heads having their end portions extending through the apertures of said flange and means formed on the ends of said wire for securing said wires in bowed position between said heads.

4. An arbor of the kind described comprising a central tubular core, spaced circular stamped metal heads welded on said core having inwardly projecting annular flanges disposed at their inner edges and provided with apertures, bowed wires connecting said heads having their ends extending through the apertures of said flanges, one

end of each wire being bent to the left and the other end to the right adapted to engage the inner walls of said flanges for holding said wires in upright position between said heads to present inclined surfaces for a shell when placed thereon.

5. An arbor of the kind described comprising a central tubular core, spaced circular stamped metal heads welded on said core having inwardly projecting annular flanges disposed at their inner edges and provided with apertures, one of said heads being of greater diameter than the other head to receive a conical shell, bowed wires connecting said heads having their ends extending through the apertures of said flanges, one end of each wire being bent to the left and the other end to the right adapted to engage the inner walls of said flanges for holding said wires in upright position between said heads to present inclined surfaces for a shell when placed thereon.

6. In an arbor of the kind described, the combination with a tubular metal core, flanged metal heads secured on said core at each end, apertured seats arranged within the periphery of said flanges, bowed wires having their ends extending loosely through the apertures of said flanges and integral means formed on the ends of said wires for locking said wires in upright position between said heads.

'7. In an arbor of the kind described, the combination with a metal tubular core, circular heads having central flanged openings secured on said core, said heads being provided with annular inwardly projecting flanges reduced in diameter at their free edges and having apertures, bowed wires connecting said heads having their end portions loosely mounted in said apertures and means formed on the ends of said wires for holding said wires in upright position.

8. An arbor for headless spools and the like comprising a tubular metal core, a pair of metal heads secured on said core provided with spaced walls, the inner wall of each head being provided with apertured and bowed wires connecting said heads having their end portions extending through said apertines and bent to engage the inner peripheral walls of said heads to hold said wires in upright position.

GEORGE B. MARKLE, JR. 

